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Two green DDR5 RDIMM modules, no heat spreaders, gold contacts visible

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 5600 CL46 ECC RDIMM memory upgrade

SKU CH-MCF3-JD81Q

A 256GB DDR5 ECC registered server memory kit with two 128GB modules running at 5600 MT/s and CL46 latency

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB total capacity from two 128 GB modules
  • DDR5 5600 speed with PC5-44800 bandwidth rating
  • ECC registered RDIMM design for data integrity
  • 4Rx4 rank configuration optimised for server workloads
  • 1 V operating voltage reduces power draw

Server-grade capacity

This 256GB kit delivers 2 x 128GB DDR5 5600 registered ECC RDIMMs built for Supermicro platforms. IT teams select it when workloads demand maximum registered memory density in a two-module configuration.

4Rx4 registered ECC

Each module uses a 4Rx4 organisation with CL46 timing at 1.10V, providing the error-correcting registered signal integrity required by compatible Supermicro B13DET motherboards. This specification determines whether the kit will post and run stably.

Two-slot density

Occupying only two 288-pin DDR5 slots, the kit leaves remaining channels free for future expansion while delivering 256GB total capacity. Builders who need more than two modules per channel or non-registered memory should look elsewhere.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $9,193.99
Pricier than about 86% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $35.91 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSupermicro DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR44800-744K2
Total capacity256 GB (2 × 128 GB)
Product type288-PIN DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB (2 × 128 GB) DDR5 5600 MHz PC5-44800 4Rx4 1.1 V CL46 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What real-world throughput does the PC5-44800 rating deliver once the modules are installed?

The kit runs at DDR5 5600, giving a peak transfer rate of 44800 MT/s per module when the platform enables that speed.

How does the registered ECC design and CL46 latency affect usable bandwidth on the DDR5 bus?

Registered buffering adds one cycle of address latency while ECC provides single-bit error correction; CL46 sets the minimum read delay at 46 clock cycles.

What physical slot and module dimensions are required to seat the 288-pin RDIMMs in the target chassis?

Each stick uses the standard 288-pin DDR5 RDIMM form factor with no heat spreader, so it fits any server board that accepts full-height registered DIMMs.

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